B15111, Forwards Rev 0 to Millstone Nuclear Power Station Unit 2 COLR Cycle 13

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Forwards Rev 0 to Millstone Nuclear Power Station Unit 2 COLR Cycle 13
ML20078N470
Person / Time
Site: Millstone Dominion icon.png
Issue date: 02/08/1995
From: Opeka J
NORTHEAST NUCLEAR ENERGY CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20078N473 List:
References
B15111, NUDOCS 9502150354
Download: ML20078N470 (2)


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C i 107 seiaen street, nerim, cr o6037

\ Northeast

. Utilities System sorta, etintie, service company P.O. Box 270 l Ilartford, CT 06141-PT70 I

, (203) 665-5000 February 8, 1995 Docket No. 50-336 B15111  :

U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Millstone Nuclear Power Station, Unit No. 2 1 Core Operating Limits Report - Cycle 13. Revision O In accordance with the Millstone Unit No. 2 Technical Specifications, Section 6.9.1.7.d, Northeast Nuclear Energy Company (NNECO) hereby submits, as Attachment 1, Revision 0 of the Cycle 13 Core Operating Limits Report.

The Millstone Unit No. 2 Core Operating Limits Report (COLR) has been revised to incorporate the following changes for Cycle 13 operation:

a. The SHUTDOWN MARGIN for T oy s2 00* F (Specification 3/4.1.1.2) has been increased from 2.0%aK/K to 3.6%AK/K. This change was made due to changes in the input assumptions for the boron dilution accident analysis for Modes 5 and 6 for Cycle 13.
b. The flux peaking augmentation factor and linear heat rate uncertainty factor (due to axial fuel densification and thermal expansion) were deleted. These uncertainty factors were only applicable to fuel assemblies not manufactured by Siemens Nuclear Power Corporation (fuel batches "A" through "L"). All fuel assemblies in the Cycle 13 core have been manufactured by Siemens Nuclear Power Corporation.

The COLR has been incorporated into the Millstone Unit No. 2 Technical Requirements Manual.

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U.S. Nuclehr Regulatory Commission ,

B15111/Page 2 '

February 8, 1995 If you should hava any questions, please call Mr. W. E. Hutchins at (203) 440-2073.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY CA-L J. F. Opskd Executive Vice President Attachment cc: T. T. Martin, Region I Administrator G. S. Vissing, NRC Project Manager, Millstone Unit No. 2 ,

P. D. Swetland, Senior Resident Inspector, Millstone Unit Nos. 1, 2, and 3  ;

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